Question: What 9-Cylinder radial engine model has the least bore?
Paraphrase: What 9-Cylinder outspread motor show has the slightest bore?
SPARQL (Wikidata): select ?ent where { ?ent wdt:P31 wd:Q15057021 . ?ent wdt:P2556 ?obj . ?ent wdt:P1002 wd:Q15135215} ORDER BY ASC(?obj)LIMIT 5 
Answer: Alfa 125 R.C.35